Mary Baker Eddy , the Discoverer and Founder of Christian Science, gives this definition of "Christ" in "Science and Health with Key to the Scriptures" (p. 583): "The divine manifestation of God, which comes to the flesh to destroy incarnate error."

Since God, the Father and Mother of all, is not appreciable to material sense, neither can Christ, "the divine manifestation of God," be appreciable to material sense. Spiritual sense alone beholds and understands God and His Christ.

The Christ is a vast subject. All that there is to effect and law, man and divine Science, is included in this subject. The Christ cannot be defined in full merely in terms of a single one of its many facets. Though Christ, "the divine manifestation of God," is one in essence with God, yet Christ, Truth, has of itself numerous, distinctive aspects. If one is at a loss to explain Christ, Truth, "the divine manifestation of God," fully, it is because he has not yet become aware of the many aspects of the office of the Christ. Christian Scientists will be compelled through necessity to progress and expand their thinking to embrace aspects of the Christ or "the divine manifestation of God," which are not yet comprehended. They must embrace these aspects not only for their own salvation from incarnate error but for that of all mankind.

Unless it was absolutely vital to the imparting of her revelation of Christian Science, Mrs. Eddy seldom if ever raised disputed subjects with mentalities unprepared to receive the truth. She knew that by spiritual progress and by necessities of daily living, these subjects would dawn by degrees on quickened human consciousness. She has made many statements of fact regarding Christ, "the divine manifestation of God," the full import of which has not yet been grasped by all students of Christian Science. These statements in no uncertain words are awaiting comprehension and use by Christian Scientists.

So far our need for the understanding of certain facets of the office of the Christ has not been compelling enough to stimulate thought to the point where it discerns them as explained in our Leader's writings. Possibly these aspects of Christ are not specifically mentioned by name, but they are unquestionably stated in words of pristine clearness and definiteness. Through spiritual intuition these aspects may at any moment of necessity come to light.

We have every reason to be confident that all the statements of wisdom and Love needful for the unfoldment of Christ, Truth, in the centuries to come are in our Leader's writings. We need only to search, find, and use them in order to meet human needs through the destruction of incarnate error or the belief of life in matter.

Mrs. Eddy writes in Science and Health (p. 331): "Life, Truth, and Love constitute the triune Person called God,—that is, the triply divine Principle, Love. They represent a trinity in unity, three in one,—the same in essence, though multiform in office: God the Father-Mother; Christ the spiritual idea of sonship; divine Science or the Holy Comforter."

Because God's manifestation is both "Christ the spiritual idea of sonship" and "divine Science or the Holy Comforter," then Christ must be so understood in Christian Science. These aspects of God's manifestation are used interchangeably by Mrs. Eddy as the context requires in defining and amplifying Christ, Truth, in her writings.

The Discoverer of Christian Science, in addition to the two afore-mentioned aspects of God's manifestation, presents for our consideration and practical demonstration another important aspect of the office of Christ. She writes (Message to The Mother Church for 1900, p. 5): "Father, Son, and Holy Ghost mean God, man, and divine Science. God is self-existent, the essence and source of the two latter, and their office is that of eternal, infinite individuality."

God is the sole essence, conceiver, and author of all individuality; therefore, in effect, eternal infinite individuality is spiritual, and is found in Christ, Truth, "the divine manifestation of God." Paul, the great Apostle, glimpsed and gave utterance to the Christly individuality of all men when he declared (Col. 3:3), "Your life is hid with Christ in God." The individuality which "is hid with Christ in God" is eternal, infinite individuality, and divine Science reveals it.

Jesus of Nazareth, the son of the Virgin-mother, expressed the idea or nature of divine sonship so fully and adequately that the title "the Christ" was bestowed upon him by those who knew and understood him best. The great Teacher, consciously aware of his Christliness, declared (John 14:6), "I am the way, the truth, and the life: no man cometh unto the Father, but by me."

How does Christ, "the divine manifestation of God," operate in its office of revealing eternal, infinite individuality? Christ comes to the flesh and quickens human consciousness. It motivates the individual through divine Science, correcting and destroying incarnate error—the delusion that there is life, truth, intelligence, and substance in matter. It is thus that Science restores man's eternal, infinite individuality to its one and only rightful home in Christ, "the divine manifestation of God."

Thinking about the Christly office of revealing eternal, infinite individuality, the Master explained (Matt. 11:27), "All things are delivered unto me of my Father: and no man knoweth the Son, but the Father; neither knoweth any man the Father, save the Son, and he to whomsoever the Son will reveal him."